CVE-2026-111221CWE-93

CVE-2026-111221

Medium · published October 15, 2026

CVSS v3.1
6.6
EPSS
1%
Percentile
60.6
In the wild
Unconfirmed
What it is

Netgate pfSense CE through 2.9.0 contains a configuration injection vulnerability that allows authenticated WebGUI users to inject mpd5 commands by submitting an unescaped RADIUS shared secret. Attackers with L2TP or PPPoE Server edit privileges can POST a secret containing a quote and newline to vpn_l2tp.php or services_pppoe_edit.php, appending an up-script that executes as root when a session starts.

The record
Technical detail
CVSS v3.1
6.6 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
7.5 · CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00939 · 60.6th percentile
Weakness
CWE-93 · Improper Neutralization of CRLF Sequences ('CRLF Injection')
Published
2026-10-15T23:17Z
Affected products (1)
ProductVersionsFixed in
pfsense/pfsense≤ 2.9.0—
References (6)
https://abraxaslabs.tech/research/pfsense-ce-leftovers · [email protected]https://github.com/abraxas/pfsense-l2tp-radius-mpd · [email protected]https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/vpn.inc#L202-L215 · [email protected]https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/vpn.inc#L428-L441 · [email protected]https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/www/vpn_l2tp.php#L137-L143 · [email protected]https://www.vulncheck.com/advisories/netgate-pfsense-ce-through-2.9.0-command-injection-via-radius-secret-mpd-conf-injection · [email protected]
EPSS history
Timeline
  • 17 OCT 03:28Z
    EPSS moved — → 1%
    epss
  • 15 OCT 18:46Z
    Netgate pfSense CE through 2.9.0 Command Injection via RADIUS Secret mpd.conf Injection
    cvelistv5
  • 15 OCT 18:46Z
    Netgate pfSense CE through 2.9.0 Command Injection via RADIUS Secret mpd.conf Injection
    cvelistv5